dun runtest fails in test_decompose

dune runtest fails for a number of test cases with b6654af8, full log is available in the web UI at devel:languages:ocaml/ocaml-dose. It seems the output I get is different from what I see here in the CI runners, but maybe I just fail to interpret the gitlab log files properly.

[   34s] Command [97] exited with code 1:
[   34s] $ (cd _build/default && src/versioning/tests/tests.exe)
[   34s] ...........................FF.....F.....F.....F.F...............................................FFFFFFFFFFFFF.FF
[   34s] ==============================================================================
[   34s] Failure: suite:5:test_decompose:15:  v1.2.3+build
[   34s] 
[   34s] expected: 1.2.3-+build but got: 1.2.3+build
[   34s] ------------------------------------------------------------------------------
[   34s] ==============================================================================
[   34s] Failure: suite:5:test_decompose:14:1.2.3+build
[   34s] 
[   34s] expected: 1.2.3-+build but got: 1.2.3+build
[   34s] ------------------------------------------------------------------------------
[   34s] ==============================================================================
[   34s] Failure: suite:5:test_decompose:12:1.2.3-beta
[   34s] 
[   34s] expected: 1.2.3-beta+ but got: 1.2.3-beta
....